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* The MIT License (MIT) *
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package org.aoju.bus.extra.json.provider;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import org.aoju.bus.core.lang.exception.InstrumentException;
import java.io.IOException;
import java.lang.reflect.Type;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
/**
* Jackson 解析器
*
* @author Kimi Liu
* @version 6.2.2
* @since JDK 1.8+
*/
public class JacksonProvider extends AbstractJsonProvider {
public static ObjectMapper objectMapper;
/**
* 构造
*/
public JacksonProvider() {
objectMapper = new ObjectMapper()
.findAndRegisterModules()
.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
}
@Override
public String toJsonString(Object object) {
try {
return objectMapper.writeValueAsString(object);
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}
}
@Override
public String toJsonString(Object object, String format) {
SimpleDateFormat sdf = new SimpleDateFormat(format);
try {
return objectMapper.writer(sdf).writeValueAsString(object);
} catch (JsonProcessingException e) {
throw new RuntimeException(e);
}
}
@Override
public T toPojo(String json, Class valueType) {
try {
return objectMapper.readValue(json, valueType);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public T toPojo(Map fromMap, Class clazz) {
return objectMapper.convertValue(fromMap, clazz);
}
@Override
public List toList(String json) {
try {
return objectMapper.readValue(json, LinkedList.class);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public List toList(String json, Class clazz) {
try {
return (List) objectMapper.readValue(json, clazz);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public List toList(String json, Type type) {
TypeReference> typeReference = new TypeReference>() {
@Override
public Type getType() {
return type;
}
};
try {
return objectMapper.readValue(json, typeReference);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public Map toMap(String json) {
try {
return objectMapper.readValue(json, Map.class);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public Map toMap(Object object) {
return objectMapper.convertValue(object, Map.class);
}
@Override
public T getValue(String json, String field) {
try {
return (T) objectMapper.readTree(json).get(field);
} catch (JsonProcessingException e) {
throw new InstrumentException(e);
}
}
@Override
public boolean isJson(String json) {
try {
objectMapper.readTree(json);
return true;
} catch (IOException e) {
return false;
}
}
}
